I recently watched a documentary about Tesla and his inventions. There were a few things that called my attention. First, the attitude of Edison towards this genius, denying him of what had been promised - not that Edison didn't have the money to pay him! And even laugh in his face. Glad to know later they became competitors, and Tesla won the contracts most of the time.
Then to the inventions themselves. The basis of our tech world relies on his thoughts - Alternating Current (AC), the induction motor, the radio!. Tesla devoted his life - and money - to the development of the theories that shaped our modern world. And what we consider so geek, all going wireless, was envisioned by him long ago.
Also it struck me that once he died - lonely, recluded in a hotel room- the government took all his notes. What was in there? Why did they take those papers? Tesla also had ideas for the implementation of his inventions in other contexts - not only scientific - but as weapons, and very powerful ones.
Some recent news about the us military testing a lighting gun reminded me a lot of Tesla`s "death ray", so we might guess where those notes went.